Valve have posted a live demonstration of their recently announced Steam Controller.

The last of a string of scheduled announcements last month, the Steam Controller has been designed specifically with PC gamers in mind and will work with every game in the Steam catalogue.

Featuring dual trackpads and a touchscreen, the controller will emulate the gameplay of using a mouse and keyboard. The announcement goes hand-in-hand with that of SteamOS, underlining Valve's attempt to bring PC gaming to the living room.

The demonstration includes gameplay footage of Portal 2, Civilization V and Counter-Strike: GO, and can be seen here: